​Exploiting non-Muslims in transactions

Question:

"I work in a restaurant and when non-Muslim foreigners come to have their meals, we charge them double the price. Is this permissible?"

Answer:

"A non-Muslim should be treated equally as other Muslims concerning business dealings. Therefore, Muslims should be honest when dealing with non-Muslims and not cheat them. They should not be charged double the price that Muslims pay; however, this does not mean we should love and befriend them. We should feel aversion to them for the Sake of Allah and indeed, this is the firmest commitment of Iman (belief). May Allah grant us assistance."

May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.